🧾 WA Sales Tax Lookup

Lookup the Sales Tax rate for a specific address in Washington State using this standalone REST API.

Try it out! Github

Based on the API provided by the Washington State Department of Revenue, WA Sales Tax Lookup, implements an identical API that responds in plain text or XML and a modern version that responds in JSON.

WA Sale Tax Lookup is designed as a standalone application so that you're not dependent on the State of Washington's IT infrastructure.

Built for high reliability and performance WA Sales Tax Lookup is a .NET 5 Web API project backed with an SQLite database that implements the OpenAPI standard and offers friendly Swagger UI documentation to make integrating with it a breeze.

Assembled on the shores of Lake Union by Thomas Ryan. The source code is licensed AGPLv3.